38 citations · 119 across the 7 of their papers we have counts for
7 papers
Gravitational lensing in a plasma from worldlines
Francesco Comberiati, Leonardo de la Cruz
We study the deflection of light rays in a cold, non-magnetized plasma using the worldline framework. Starting from Synge's Hamiltonian formalism, we construct a position-space act…
Six-dimensional one-loop divergences in quantum gravity from the spinning particle
Fiorenzo Bastianelli, Francesco Comberiati, Filippo Fecit +1
In this work, we investigate the computation of the counterterms necessary for the renormalization of the one-loop effective action of quantum gravity using both the worldline form…
Classical Double Copy of Spinning Worldline Quantum Field Theory
Francesco Comberiati, Canxin Shi
We study the classical double copy of massive spinning objects in the worldline quantum field theories (WQFT) formalism. We couple the supersymmetric model to a Yan…
Classical off-shell currents
Francesco Comberiati, Leonardo de la Cruz
We consider tree-level off-shell currents of two massive particles and massless bosons in the classical limit, which can be fused into the classical limit of scattering a…
Light bending from eikonal in worldline quantum field theory
Fiorenzo Bastianelli, Francesco Comberiati, Leonardo de la Cruz
Using the worldline quantum field theory (WQFT) formalism for classical scattering, we study the deflection of light by a heavy massive spinless/spinning object. WQFT requires the…
Worldline description of a bi-adjoint scalar and the zeroth copy
Fiorenzo Bastianelli, Francesco Comberiati, Leonardo de la Cruz
Bi-adjoint scalars are helpful in studying properties of color/kinematics duality and the double copy, which relates scattering amplitudes of gauge and gravity theories. Here we st…
Path integral calculation of heat kernel traces with first order operator insertions
Fiorenzo Bastianelli, Francesco Comberiati
We study generalized heat kernel coefficients, which appear in the trace of the heat kernel with an insertion of a first-order differential operator, by using a path integral repre…